Yes, for a colonoscopy. I was having trouble figuring out how to put on two gowns as instructed.
I didn't find the colonoscopy procedure at all fetish-feeding.
A related note: an older doc stayed in the room while I got undressed, and watched me pretty closely. He just told me, "Get undressed." I was 36 I believe. My two previous physicals with him had been with me in a gown, and was told to be naked underneath, but he was not in the room when I got undressed. This time he stayed in the room.
There was no gown offered, and none was in sight. I still remember standing in front of him, in only my black boxer briefs, contemplating whether I should ask him: "These too?"
Only when I was back at home did I think I should've just stripped all the way, and if he said something, I could've responded: "Oh, I thought that's what you wanted, since my last two physicals I was told to take everything off."
Unfortunately he retired after that physical.